Apparatus for steaming wood.



No. 735,608. PATENTED AUG. 4, 1903.

o. W. STANTON.

APPARATUS FOR STEAMING WOOD. APPLICATION FILED 00110. 1902.

N0 MODEL.

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UNITED STATES Patented August 4, 1903.

PATENT OFFICE.

APPARATUS FOR STEAMINQ WOOD.

SPECTFIGATION forming part of Letters Patent No. 735,608, dated AugustI, 1903. Application filed October 10, 1902. Serial No. 126,776. (N0model.)

'to boil the sap and moisture therefrom prior to treating the same toany suitable waterproofing or preserving composition.

It is the prime purpose of the invention to provide an apparatus theparts of which are so constructed and arranged as to save both theliquid and the gaseous products resulting from the steaming operation.To these ends the invention comprises the novel features of constructionand arrangement of parts in an apparatus of the above-specified type.

In the annexed drawing the figure represents. a longitudinal sectionalview of my improved steaming apparatus.

Referring to the drawing the referencenumeral 1 designates ahermetically-sealed tank or vessel of any suitable shape incrosssection, said tank being provided at its opposite ,ends with doors2, through which the wood or other material to be treated may beintroduced into the vessel. Leading into the vessel,preferably at thetop thereof,is a steaminlet pipe 3, provided with a valve 4.

The reference numeral 5 designates an outlet pipe through which thesteam and other products may pass. The end of said pipe 5 terminatesinto a condensing-worm 7*, arranged in a suitable receptacle 7 in whichis placed a suitable cooling medium. The end of the worm 7 projectsthrough the receptacle 7 and terminates in a pipe 7 for the discharge ofthe products of condensation into a suitable tank 6, having a liquidseal therein, such as water. The seal in the receptacle 6 prevents anyback pressure of air or otherwise to the worm and, further, prevents theescape to the atmosphere of any of the uncondensed products.

The reference-numeral 7 denotes a drawoE pipe for the products ofcondensation. The tank 6 is also provided with a filling-cock 8. Thetank 6 is also provided with a drawoff pipe 9 for the uncondensed gases.These uncondensed products may be discharged intothe atmosphere orcarried to any suitable point and used for any suitable purpose. Thepipe 9 is provided with a valve 10. The tank 6 and receptacle 7 areprovided with suitable inlet and outlet valves. The tank 1, into whichthe material is introduced, is provided with a pressure-gage 13.

In operation the wood or other material to be treated is placed in thetank and steam introduced therein through the inlet-pipe 3, the'steamcirculating through the wood and finally passing out of the tank throughthe pipe 5 into the worm 7", where it is condensed and the products ofcondensation discharged through the pipe 7 Having now described theinvention, what I claim as new, and desire to secure by Letters Patent,is

g In a steaming apparatus, a cylindrical tank, provided with a door ateach end, a steam-inlet pipe communicating With said tank near one endthereof, a pressure-gage mounted upon said tank and suitablycommunicating therewith, a vertically and a longitudinally extendingoutlet-pipe communicating at one end with said tank, a condensing-wormcommunicating with the other end of said outlet-pipe, a closed tankhaving a liquid seal therein, and a pipe communicat ing at its upper endwith said condensingworm and at'its lower end projecting. into saidsealing means.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

CHARLES WALDREN STANTON.

Witnesses:

GEO. W. REA, 7 PHILIP N. TILDEN.

